21071798

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{50411}}^1$

素因数の和:50443

約数の個数: 16

約数和(自身を含む): 36296640

約数和(自身を除く): 15224842

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 50411, 100822, 554521, 957809, 1109042, 1915618, 10535899, 21071798]

約数ペア:

[(1, 21071798), (2, 10535899), (11, 1915618), (19, 1109042), (22, 957809), (38, 554521), (209, 100822), (418, 50411)]